Water-strainer.



H. MUELLER.

WATER STBAINEE.

APILIOA'I'IOH rum NOV. 7, 1901. nnnnwnn JULY 25, 1208.

908,308. Patented Dec. 29, 1908.

2 SHEETS-SHEET 1.

LL/z'tnesses: I m/entm? WQ J-[enry Mueller; 9M. 9H1 $32 by W 711'. s attorneys H. MUELLER.

WATER ETBAINEB. nrmouxon rum) NOV. '1, 1901. nmmwnn Jun 25. 1908.

908,308. Patented Dec.29,1908.

2 SHEETS-SHEET 2.

his attorney:-

UNITED STATES PATENT OFFICE.

HENRY MUELLER, OF DECATUR, ILLINOIS, ASSIGNOR TO H. MUELLER MANUFACTURING COMPANY, OF DECATUR, ILLINOIS, A CORPORATION OF ILLINOIS.

WATER-STBAINER;

Specification of Letters Patent.

Patented Dec. 29, 1908;

Application filed November 7, 1907, Serial No. 401,092. Renewed July 25, 1908. Serial No. 445,343.

To all wkom it may concern:

Be it known that I, HENRY MUELLER, a citizen. of the United States, and resident of Decatur, Macon county, State of Illinois,

have invented certain new and useful 1&1- provements in Water-Strainers; and my preerred manner of can ing out the invention is set forth in the fol owing full, clear and exact description, terminating with c aims particularly specifying the novelty.

This invention relates to water purification, and more esfipccially to that class of devices known as ters of the strainer type; and the object of the same is to roduce improvements in a strainer of this 0 aracter.

To this end the invention consists in a peculiar shaped strainer which proiides a large working surface in comparatively small space so as not to retard the flow of the liquid even under excessive pressure.

The invention also consists in the rovision of a distinct sediment chamber elow the strainer, a baffle late directing the inflowing liquid into this chamber, and other details of construction as will appear below.

In the drawings Fi ure 1 is a central lon tudinal vertical section through this deuce complete; Fig. 2 is a plan view of the strainer and spider; and Fig. 3 is a side elevation of the strainer alone.

Referring to the accompanying drawings which form part of this specification and in which the same reference numerals are used on corresponding parts in the several VIGVVS, l designates the casing or body which is by preference a hollow casting shaped about as shown and hating flanges. 20 around the openings at its upper and lower ends and flanges 20 around the openings at its sides. The top and bottom 0 enings are provided with suitable closures 0 which two different types are illustrated in Fig. 1'. That for the top is here shown as a flat ca 15 bolted to the flange 20 with packing 11 etween them, and preferably be; ing an annular rib 13 on its inner face which centers it accurately overthc opening. That for the bottom may be an extension, and as here shown is a reducer It, with the same acking 11 and rib 13; and a flat cap 9 is a so here shown as closing the reducer in the same wa that the cap 15 closes the top, except that t e cap has I a central plug 10. Oh 'iously either form of closure could be employed, but the arrangeably of cylindrical contour.

ment illustrated is probably the most serviceable.

The numerals 14 designate pi es, that marked A being the inlet bolted to t e flange 20 at the inlet side 16 of the body, and that B bein the outlet at the outlet side 16of the b0 y. However, I do not wish to be confined to this exact manner of connecting the pipes with the strainer, as it forms no part of the present invention.

The upright casing 1 of the strainer is cast or formed with a partition 7 extending obliquely across it from a point above the inlet 16 to a point below the outlet 16", and below this artition the casing is continued downwar some distance so as to form a distinct sediment chamber 2 of large size and prefer- This chamber is closed at its lower end by a closure; or, as illustrated, it may be extended further downward so as to increase its capacit and the lower end of the extension closed y a suitable cap. Above the partition 7 is formed another and relatively shorter chamber in which is located the screen described below. If the latter be constructed as herein shown and described, the partition is provided with standinqlsubstantiall on the axis of the easing so at the inflowin liquid will be directed downward into t e sediment chamber 2.

The strainer pro er comprises a screen 4 which is of inverts cup shape with its lower and cut oil oblique as seen in Fig. 3, and

perforations through the side wall and the top 4 of this screen of such size and number as to aggregate apassageway having from two to three times the capacity (1' the pi e connections. It will be observed that t e larger side wall of this screen is presented toward the outlet 16, although there is an annular s ace within the body entirely around its si e wall and an additional space between its top and the cap 15; and this arrangement aflords the greatest capacity for the passage of liquid into and through the iscreen, and thereby prevents the strainer from choking even when the liquid is forced through by or under pressure. The open lower end of the screen rests upon the shoulder of the 0 ening 19 and is preferably stre thened y a ring 17 secured thereto as by so daring or otherwise, and its up or cornor is also preferably strengthene by a ring 12 he numeral 5 designates a spider whose arms may be attached rigidly to the ring 12 or notched at their ti s so as to removably engage it, and the hu of this spider has a socket 21 adapted to be engaged by a set screw 6 which takes through the ca 15 and may be protected by a plug 3. O viously the screen and its parts are inserted from above by removing the cap 15, and when in place the set screw holds all parts firmly in position and resists their dislocation while the device is in action.

The liquid entering the inlet 16 strikes the baffle plate 8 and is deflected downward toward and along the axis of the sediment chamber 2. Filling the latter, it rises behind the baffle plate, throu h the opening 19, and into the screen 4. If t evolume of liquid is small and the pressure light, it will pass throu h the lower portion of the longest wall of t e screen as indicated by the oup of four arrows. As the volume ancF pressure increase the liquid will rise higher within the screen and more of the erforations will come into pla With still eater volume and pressure, t e liquid will rise still further, and eventually all the perforations in the side wall and in the top of the screen will come into lay, as indicated by all the ar- .rows, yet t ere is no ossible way for any liquid to reach the out at 16' without pass ing through some portion of the screen. Meanwhile any heavy particles of matter that may flow in at 16 will be deflected by the baflle plate and will sink bi gravity in and remain at the bottom of t e sediment chamber .2, and other particles possibly lighter or which may be carried by the current up into the screen will also eventually settle and lodge in said chamber. The result is that the sediment strained from the liquid will accumulate in the chamber, and if the latter is voided frequently it can be done bfy removing theplug 10 when the pressure 0 the liquid will blow out the accumulated sediment. If the chamber is not voided frequently or the li uid is particularly foul or the particles of s'eiiiment large, it may be necessary to remove the entire cap 9. In some instances where this strainer will not receive attention save at long periods, it may be desirable to employ an extension like that lettered 15' or one of greater length so as to materially increase the capacity of the sediment chamber. From time to time the interior of said chamber can be cleaned by first cutting ofi the inlet and then entirely removing the lower closure so as to gain access to the interior. Similarly the upper portion of the casin can be cleaned by removing the u or c osure and withdrawing the screen. All parts are preferably of meta], although the exact material and the sizes and roportions are unimportant to the suc cessfiil o eration of the device. Wide departure iiom the described and illustrated means of connecting the pi es 14 or detaching the closures may be madb at the pleasure of the manufacturer.

What is claimed as new is:

1. A liquid strainer comprising an upright casin havi a cross passage communicating with the inlet and outlet and interrupted by a straight oblique partition provided with a shouldered opening concentric with the axis of the casing, said partition forming a distinct sediment chamber in the-casing beneath it and a smaller chamber above it; combined with a screen of inverted cu sha e cut off oblique at its lower end and wit its body engaging the shoulder in said 0 ening, its side and top walls remote from t e interior of said casing and its longer side wall adjacent the outlet,.a reinforcing ring around the upper corner of the screen, a spider whose arms engage said ring and whose hub has a socket, closures for the upper and lower ends of-the casing, a set screw through the up or closure engaging said socket, and a bei e slate projecting from the higher edge of sai partition inward and curving downward over the inlet to a point substantially at the center of the casing and below the lowest line of said crosspassage.

2. A liquid strainer comprising an upright casing havi a cross passage communicating with the inlet and outlet and interrupted by a straight oblique partition provided with a shouldered opening concentric with the axis of the casing, said partition forming a distinct sediment chamber in the casing beneath it and a smaller chamber above it; combined with a screen of inverted on she e cut off oblique at its lower end an with its body engaging the shoulder in said 0 ening, its side and top walls remote from t e interior of said casing and its longer side wall adjacent the outlet, a reinforcing ring around the upper corner of the screen, a spider whose arms engage said ring and whose hub has a socket, closures for the upper and lower ends of the casing, and a set screw through the upper closure engaging said socket.

3. A liquid strainer comprising an upright casing havinga cross passage communicating with the inlet and outlet and interrupted by a straisht'oblique partition provided ,with a shouldered opening concentric with the axis of the casing, said partition forming a distinct sediment chamber in the casing beneath it and a smaller chamber above it;

ti U

Combined with a screen of inverted cup sl a a cut off oblique at its lower end and l its body engaging the shoulder in said titwlllllg and remote from the interior of said titHHliI and its longer side wall ad'accnt the outlet, closures for the up er and ower ends or the casing, and a bai plate projecting framt the higher edge of said partition inward aim curving downward over the inlet-fa a point substantially at the center of the casing and below the lowest line of said cross passage.

I. A liquid strainer comprising an upright casing having a cross passage communicating with the inlet and outlet and interrupted by a straight oblique partition provided with a shouldered opening concentric with the axis of the casing, said partition forming a distinct sediment chamber in the casing beneath it and a smaller chamber above it; :nmbined with a screen of inverted on the )e cut oil oblique at its lower end wit its body engaging the shoulder in said opening and remote from the interior of. said casing and its longer side wall adjacent the outlet, and closures for theupper and lower ends of the casing.

5. A liquid strainer comprising an upright casing having a cross passage communicating with the inlet and outlet and interrupted by a straight oblique partition provided with an pening concentric with the axis of the casing, said partition forming a distinct sediment chamber in the casing beneath it combined with a screen of inverted cup sha ie cut oil oblique at its lower end with its bo y engaging said opening, its side and top walls remote from the interior of said casing and its longer side wall adjacent the outlet, a reinforcing ring around the upper corner of the screen, a spider'whose arms engage said ring and whose hub has a socket, closures for the upper and lower ends of the casing, a set screw through the upper closure engaging said socket, and a baflie plate projecting from the higher edge of said partition incard and curving downward over the inlet to a point substantially at the center of the casing and below the lowest line of said cross assage.

6. liquid strainer comprising an upright casing having a cross passage communicating with the inlet and outlet and interrupted by a straight oblique partition with an openin concentric with the axis of the casing, sai

nirtit ion forming a distinct sediment chamlrcr in the casing beneath it; combined with a screen of inverted cup shape cut ofi oblique at its lower end and with its bod engaging sa d 0 ening and remote from 't e interior of salt casin and its longer side Wall adjaent the out ct, closures for the up er and l wer ends of the casing, and a ha e plate projecting from the higher edge of said par- Ullull inward and curving downward over the inlet to a point substantie "v at the center of the casing and bwow the lowest line of said cross passage.

7. A liquid strainer camprising an upright casing having a cross passage communicating with the inlet and outlet and interrupted by a straight oblique partition provided with an openingconcentric with the mug of the casing, said partition forming a distinct sediment chamber in the casing beneath it; combined with a screen of inverted cup shape cut off oblique at its lower nd and with its body "engaging said opening and remote from the interior of said casing and its l nger side wall adjacent the outlet, closures for the upper and lower ends of the casing, and a bafile plate projecting from the higher edge of said artition inward and downward over the inlet to a point substantially at the center of the casing.

8. A liquid strainer comprising an upright casing having a cross passage communicating with the inlet and outlet and interrupted by -a straight obliquepartition provided with an opening concentric with the axis of the casing, said partition forming a distinct sediment chamber in the casing beneath it; combined with a screen of inverted cu shape cut oil oblique at its lower end and with its body engaging said opening and remote from the inter1or of said casing and its longer side wall adjacent the outlet, closures for the upper and lower ends of the casing, and 8. baths plate projecting from the higher edge of said artition inward and downward over the inst to a point below the lowest line of said cross assage.

9, liquid strainer comprising an upright casing having a cross passage communicating with the inlet and outlet and interrupted by a partition provided with a shouldered opening concentric with the axis of the casing, said partition forming a distinct sediment cham er' in the casing beneath it and a smaller chamber above it; combined with a screen of inverted cup shape its lower end engaging the shoulder in said openin and its body being-remote from the interior of said casin closures for the up er and lower ends of t e casing, and a be e late projectin from the higher edge of sai partition inwar and curving downward over the inlet to a point substantiall at the center of the casing and below the owest line of said OXOSS passage.

10. A liquid strainer comprising an upright casing having a cross passage communicatin with the inlet and outlet and interrupted y a partition provided with an opening concentric with t e axis of the casing, said partition forming a distinct sediment cham er in the casingbeneatn it; combined with a screen of inverted cup shape its lower end engaging said opening and its body being remote rom the interior of the casing,

closures for the u per and lower ends of the subscribed my signature this the 2nd day of casing, and a ba. e plate projecting from the h h d d rd d November, A. D. 1907.

ig er e ge of sai partition inwa an curving downward over the inlet to a point HENRY MUELLER 6 substantially at the center of the casing and Witnesses:

below the lowest line of said cross passage. VIRGINIA HAMILTON, In testimony whereof I have hereunto{ JOHN L. WADDELL. 

